Vocabulary
Give three examples of a variable.
(Any 3 letters)
x + 2 = 8
x = 6
4x = 16
x = 4
Solve for m
-3m = 24
m = -8
Combine 6x and 2x
8x
What is the opposite of division?
Multiplication (This is the ONLY acceptable answer. I will not accept "times")
Solve.
x - 10 = 12
x = 22
Solve.
25x = 125
x = 5
Solve for x
-35 + x = 60
x = 95
Combine like terms:
-5x + 4x + 3x - 10
2x - 10
What is a number all by itself WITHOUT a variable in an expression? For example, the 7 in 3x +7 = 90
Constant
Solve.
26 = x + 14
x = 12
x/10 = 10
x= 100
r/-5 = -11
r = 55
Combine like terms:
6x + 9y - 10
6x + 9y -10
What are the coefficients in this expression?
-2x + 3y
-2 and 3
- 6 + x = 12
x = 18
x / -2 = 16
x = -32
-300 + w = -100
w = 200
Combine:
7x - 10x + 4x - 8x + 7x
0
What is a coefficient?
A number with a variable that tells us how many of the variable we have. For example, the 8 in 8x is a coefficient.
-10 - x = 20
HINT: There are TWO STEPS
x = -30
18x = 45
x = 2.5
v/100 = -50
v = -5000
4( 2x + 3y -8 )
8x +12y -32